GTAIII/VC is fun, but it's just kinda mindless violence for the most part (which is fun, but gets old for me, but I have played it alot more than most games). HALO is a better overall game, and it's multiplayer capabilities put it well over the top. Playing with 4 or more people is killer fun, the options and gametypes are alot of fun, and are very well done in HALO IMO. GTA has zilch in that department. Maybe it's just that I'm mainly a FPS kinda guy, and HALO is definitely one of the sweetest FPS games of all time, but I prefer HALO over GTA3...